We live very close to both the dam and Leidseplein, and the appartement is next to a cute market, and a place called the Foodhallen, which is a very popular place among people from Amsterdam. Besides, we(outgoing students) can help you get around.
My fiancé and I stayed at Maarten's place for one night for New Years. The location is perfect as there are a lot of cute little stores and restaurants in walking distance. Also the tram is really close so you can get to the downtown area with no problems. The room was just as described, the bed is heaven! We weren't able to meet Maarten personally but his roommate was very friendly and helped us settle in, also he gave us tips for where to go out at night time. Overall we would definitely stay at Maarten's place again :-) thumbs up